Use After Free The advisory has been revoked - it doesn't affect any version of package kernel-rt-devel (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-KERNELRTDEVEL-8585639
- published31 Dec 2024
- disclosed27 Dec 2024
Introduced: 27 Dec 2024
CVE-2024-53206 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:7.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-devel package and not the kernel-rt-devel package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
tcp: Fix use-after-free of nreq in reqsk_timer_handler().
The cited commit replaced inet_csk_reqsk_queue_drop_and_put() with __inet_csk_reqsk_queue_drop() and reqsk_put() in reqsk_timer_handler().
Then, oreq should be passed to reqsk_put() instead of req; otherwise use-after-free of nreq could happen when reqsk is migrated but the retry attempt failed (e.g. due to timeout).
Let's pass oreq to reqsk_put().
References
- https://access.redhat.com/security/cve/CVE-2024-53206
- https://git.kernel.org/stable/c/2dcc86fefe09ac853158afd96b60d544af115dc5
- https://git.kernel.org/stable/c/65ed89cad1f57034c256b016e89e8c0a4ec7c65b
- https://git.kernel.org/stable/c/6d845028609a4af0ad66f499ee0bd5789122b067
- https://git.kernel.org/stable/c/9a3c1ad93e6fba67b3a637cfa95a57a6685e4908
- https://git.kernel.org/stable/c/c31e72d021db2714df03df6c42855a1db592716c
- https://git.kernel.org/stable/c/d0eb14cb8c08b00c36a3d5dc57a6f428b301f721